A coffee bean is the seed of the coffee plant.
The coffee cherries contain two parts with their sides
together.Coffee beans consist of endosperm that contains
0.8 - 2.5 % caffeine, that is one of the reasons the plants
are cultivated. coffee is one of the most widely consumed
beverages in the world.

coffee beans

coffee-cherries


Structure of coffee berry and coffee beans:

1-center cut
2-bean
3-silver skin
4- parchment
5-pectin layer
6-pulp
7- outer skin